EP 2576480 A2 20130410 - CORDIERITE POROUS CERAMIC HONEYCOMB ARTICLES
Title (en)
CORDIERITE POROUS CERAMIC HONEYCOMB ARTICLES
Title (de)
PORÖSE KERAMIKWABENARTIKEL AUS CORDIERIT
Title (fr)
ARTICLES EN CORDIÉRITE CÉRAMIQUES POREUX EN NID D'ABEILLE
Publication
Application
Priority
- US 78983310 A 20100528
- US 2011038030 W 20110526
Abstract (en)
[origin: WO2011150145A2] Porous ceramic honeycomb articles for use as particulate filters and processes for making the same are described herein. The porous ceramic honeycomb articles include a fired cordierite body. The fired cordierite body has a microcrack parameter (Nb3) of about 0.05 to about 0.25 prior to exposure to a microcracking condition. After exposure to the microcracking condition, the fired cordierite body has a microcrack parameter (Nb3) at least 20% greater than the microcrack parameter prior to exposure to the microcracking condition. The fired cordierite body has a coefficient of thermal expansion (CTE) of about 7.0x10-7/°C to about 15.0x10-7/°C over from about 25°C to about 800°C prior to exposure to the microcracking condition and a coefficient of thermal expansion of about 1.0x10-7/°C to about 10.0x10-7/°C over from about 25°C to about 800°C after exposure to the microcracking condition. The microcrack parameter may include a thermal cycle or a chemical treatment.
IPC 8 full level
C04B 35/195 (2006.01)
CPC (source: CN EP US)
B01D 46/2429 (2013.01 - US); B01D 46/24491 (2021.08 - CN EP US); B01D 46/24492 (2021.08 - CN EP US); B01D 46/24493 (2021.08 - CN EP US); B01D 46/24494 (2021.08 - CN EP US); B01D 46/24495 (2021.08 - CN EP US); B01D 46/2498 (2021.08 - EP); B01J 35/56 (2024.01 - EP US); C04B 35/195 (2013.01 - CN EP US); C04B 38/0006 (2013.01 - CN EP US); C04B 38/0655 (2013.01 - CN); F01N 3/0222 (2013.01 - CN); B01D 46/2498 (2021.08 - US); C04B 2111/00793 (2013.01 - EP US); C04B 2111/0081 (2013.01 - EP US); C04B 2235/9607 (2013.01 - CN); F01N 3/0222 (2013.01 - EP US); F01N 2260/10 (2013.01 - EP US); F01N 2330/06 (2013.01 - CN); Y10T 428/24149 (2015.01 - EP US)
Citation (search report)
See references of WO 2011150145A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011150145 A2 20111201; WO 2011150145 A9 20120126; CN 102918005 A 20130206; CN 106007693 A 20161012; EP 2576480 A2 20130410; JP 2013534889 A 20130909; US 2011293883 A1 20111201; US 9856177 B2 20180102
DOCDB simple family (application)
US 2011038030 W 20110526; CN 201180026267 A 20110526; CN 201610341915 A 20110526; EP 11726546 A 20110526; JP 2013513233 A 20110526; US 78983310 A 20100528